Coin receiving and collecting assembly for coin controlled devices



May 15, 1962 B. SHARE 3,034,705

com RECEIVING AND COLLECTING ASSEMBLY FOR com CONTROLLED DEVICES FiledNov. 25, 1960 2 Sheets-Sheet 1 rm 15\ no.3

INVENTOR.

BY Barneri Share vmw AT TORN EYS May 15, 1962 Filed Nov. 23, 1960 HARECOIN RECEIVING AND COLLECTING ASSEMBLY FIG. 7

FOR COIN CONTROLLED DEVICES FIG. 8

2 Sheets-Sheet 2 FIG. 9

FIG. 10

FIG.13 FIG. 1 1

INVENTOR.

Barnerf Share ATTORNEYS United States Patent 3,034,705 COIN RECEIVINGAND COLLECTING ASSEMBLY FOR COIN CONTROLLED DEVICES Barnett Share,Queens Village, N.Y., assignor to Complete Machinery & Equipment Co.,Inc., Long Island City,

N.Y., a corporation of New York Filed Nov. 23, 1960, Ser. No. 71,332 16Claims. (Cl. 23216) This invention relates to coin operated devices and,more particularly, to a novel coin receiving and collecting assemblytherefor which may be unlocked and the coins collected therefrom solelyby the use of a high vacuum.

One of the practical problems involved with coin operated devices is thenumber of man hours required for servicing and collection of coinstherefrom. This is particularly true in the case of coin operatedparking meters. A general procedure involves unlocking of the meterhead, removing the coin receptacle, dumping the contents of thereceptacle into a coin collector, replace-- ment of the coin receptacle,and relocking of the meter head. Not only is this time consuming, butalso there is undue opportunity for pilferage of coins by the persondoing the servicing or by others.

In a known and rather common form of parking meter, the meter head ismounted upon a suitable upright post, or stanchion, and includes anindicator dial, a coin slot, to receive a coin of a suitabledenomination, and a handle or key by means of which the parking meterdial may be set back to zero. The coin put into the coin slot falls downinto a receptacle or collecting space within the meter head below thecoin slot, and access to this receptacle or space is provided through anaccess opening closed by a key-operated locked door hinged to the meterhead. In this type of parking meter, either the locked door must beopened and the receptacle removed in order to recover the coinstherefrom, or the coins must be manually scooped out of the collectionspace.

While the expense and loss involved in manual collection of coins fromthis and other types of parking meters is well known to the authoritiesusing the same, nevertheless the problem of expense involved inconverting such parking meters to a more efficient collection system hasbeen such that there has been, to date, no substantial conversion. Tothat end, the present invention is directed to a novel coin receptacleand vacuum operated lock which may be easily and very inexpensivelysubstituted in the above-mentioned and other types of parking meters.

The essential feature of the present invention is a new type of vacuumoperated lock which may be substituted for the present key-operatedlocks used in various forms of parking meters, and control access to thecoins in the parking meter heads. This lock is arranged to be mounted ina meter head or a door thereof, and includes a body portion arranged toextend through an opening in a novel coin receptacle secured in themeter head, or through a nipple extending inwardly from such opening.The body portion of the lock carries a spring biased pin or plunger sopositioned that, when the body portion is engaged through the opening ornipple with which it cooperates, the pin or plunger will engage behindthe inner edge of the nipple, and thus prevent access to the coinreceptacle. A passage extends longitudinally through the body portionfrom the outer surface of the lock to a chamber beneath the pin orplunger, so that a relatively high vacuum may be provided to the chamberto retract the catch.

In order to avoid any possibility of vacuum operation of the lock by aperson placing his mouth against the outer surface of the vacuumoperated lock and sucking, a

by-pass opening is provided from the chamber to the exterior of the bodyportion inside of the opening or extension through which the bodyportion extends. This by-pass opening provides an air by-pass, wherebyit is not possible to retract the pin or plunger solely by mere oralsuction. On the other hand, when a mechanical suction of above apredetermined value is applied to the outer surface of the lock, the pinor plunger is retracted to open the lock.

The nozzle, connected to a source of vacuum and used to operate thelock, is then inserted, in substantially airtight relation, through theopening or nipple receiving the lock and, due to turbulence created byair openings in the coin receptacle, all of the coins in the receptacleare substantially immediately withdrawn therefrom and into the hoseconnected with the vacuum nozzle.

As applied to one form of parking meter having a hinged door for accessto the coin receptacle or coin vault, the vacuum operated lock isoperatively associated with a coin receptacle comprising an elongatedsubstantially closed box, having a coin receiving slot in its upper end,and having a plurality of relatively large diameter openings in itsbottom end and its sides adjacent its bottom end. Intermediate the topand bottom of this receptacle, there is a tubular extension or nippleextending from an opening in the front wall of the receptacle into theinterior thereof, and there is a guiding b afile means provided abovethis nipple or extension whereby coins, dropped into the receptacle,will fall past the nipple or extension to the bottom of the receptacle.The receptacle, insofar as its exterior design characteristics areconcerned, is designed for substitution in the first-mentioned type ofparking meter, or for conforming insertion in the coin accumulatingspace thereof. Thus, it may be easily substituted in the existing meterassembly, and at very small expense.

ln this embodiment of the invention, the door has its upper edge hingedto the meter head and has the vacuum operated lock adjacent its loweredge and arranged to project through an outwardly opening nippleextending into the coin receptacle, with the spring biased catch, pin,or plunger engaging beyond the inner end of the nipple to prevent thedoor from being opened.

In another form of parking meter having a locked door hinged at itsupper edge to the meter head, the vacuum operated lock is substitutedfor the key-operated lock adjacent the lower edge of the door and itspin or plunger is engageable with a lock plate provided in the coinvault of the meter head. A receptacle, embodying the invention andformed with a vacuum nozzle receiving opening and with air admissionopenings, is secured \m'thin the coin vault.

As an alternative in this case, the key-operated lock may be retainedand the door formed with an opening, aligned and substantially congruentwith the coin removal opening of the receptacle. The body portion of thevacuum operated lock is then inserted freely through such door openingfor latching cooperation with the coin receptacle. To collect coins fromthe receptacle, the vacuum operated lock is unlocked and withdrawn fromthe door, and the nozzle is inserted through the aligned door andreceptacle openings. Dual security is provided by the two locks, withthe key-operated lock used for maintenance access to the interior of themeter head.

In the form of parking meter in which the door is completely removablewhen the lock has been opened, the vacuum operated lock may besubstituted for the keyoperated lock and be removable with the door andcooperable with the coin access opening of a coin receptacle embodyingthe invention and secured within the meter head when the door isremoved, the vacuum nozzle being inserted into the coin access openingin the receptacle.

Alternatively, the lock may be removable from the door so that thenozzle of the vacuum hose may be inserted in air-tight relation throughthe aligned openings in the door and receptacle. In this latter case,the door is permanently secured to the meter head. The coin receptacleis formed with a plurality of relatively small apertures for providingthe afore-mentioned air turbulence therewithin.

In a further form of parking meter, in which the door is hinged at itslower edge to the meter head, the coin receptacle comprises a piece ofpipe inserted into the stanchion of the parking meter and having anopening in its lateral wall adjacent the meter head opening. The lowerend of this pipe is closed but is formed with a series of perforations.In this case, after the vacuum operated lock, which is substituted forthe key-operated lock, has been opened so that the door may be swungdown, the nozzle on the vacuum hose is inserted into the apertureadjacent the upper end of the pipe to withdraw the coins from the pipe,with the apertured bottom wall of the pipe providing the requisite airturbulence for such withdrawal.

Preferably, the hose, having the lock operating nozzle on its outer end,is connected to a collecting device wherein the coins are delivereddirectly into a sealed receptacle which can be opened only at thecollection depot. Thereby, pilferage of coins is substantiallyeliminated. The type of collecting arrangement used is illustrated inFIG. 3 of my US. Patent No. 2,869,777, issued January 20, 1959, althoughthe vacuum host nozzle illustrated therein is of a special form thatwould not be used with the present invention.

For an understanding of the principles of the invention, reference ismade to the following description of a typical embodiment thereof asillustrated in the accompanying drawings. In the drawings:

FIG. 1 is a top plan view of a coin receptacle embodying the invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view of the vacuum operated lock asmounted in a top-hinged door;

FIG. 5 is a side elevational view of the assembly shown in FIG. 4;

FIG. 6 is a partial perspective view of one form of parking meterembodying the invention;

FIG. 7 is a front elevational view of another form of parking meterembodying the invention;

FIG. 8 is a side elevational view thereof;

FIG. 9 is a front elevational view of a parking meter embodying theinvention in which the entire door is normally removed when the lock isopened;

FIG. 10 is a side elevational view thereof;

FIG. 11 is an elevational view of a door, for the parking meter shown inFIGS. 9 and 10, and having the vacuum operated lock of the presentinvention secured therein;

FIG. 12 is a front elevational view of still another form of parkingmeter embodying the invention;

FIG. 13 is a side elevational view thereof; and

FIG. 14 is a view on the line 1414 of FIG. 12, looking in the directionof the arrows.

Referring to FIGS. 1, 2, and 3, the coin receptacle 10, shown by way ofexample, is provided with any configuration suitable to conform toexisting coin storage spaces or receptacles in parking meter heads. Inthe particular embodiment shown, receptacle or receiver 10 has agenerally elongated box-like form with an open top closed by aconforming trapezoidal cover plate 15 formed with a coin slot 16 andsecured to receptacle 10 by suitable means such as rivets or screws 17.

Receptacle I0 is generally rectangular in cross section and includes apair of substantially parallel side walls 11 which are flared out, as at12, to provide a substantially trapezoidal open upper end which conformsto the trapezoidal plate 15. The coin receiver has a generallyvertically extending rear wall 13 which, in the particular embodimentillustrated, may be off-set adjacent its upper end to form a downwardlyfacing ledge 14. Rear wall 13 is progressively increased in width,adjacent its upper end, to conform to the flared portions 12 of sidewalls 11. A front wall 18 extends substantially parallel to rear wall 13and is off-set, adjacent its lower end, to form an inwardly extendingledge 21. The side, front, and rear walls extend upwardly from a bottomwall 22. For a purpose to be described, ledge 21, bottom wall 22, andthe lower ends of the side, front, and rear walls adjacent bottom wall22 are formed with a plurality of apertures which may, for example, beabout one-quarter inch in diameter.

Intermediate its height, wall 18 has formed integrally therewith aninwardly extending tubular portion or boss 25 opening outwardly throughwall 18, above which is a sloping shelf or baifie 23. Extension 25 formsa receiving passage for a vacuum nozzle.

As coins fall through the slot 16, they are deflected by the bafiie 23toward the rear of the box so that they fall into the portion of the boxbelow the ledge 21. When a vacuum nozzle, having a source of high vacuumconnected thereto, is inserted into the extension 25, the air inrushingthrough the apertures 20 creates turbulence and agitation among thecoins and the latter are carried to the vacuum nozzle and thus withdrawnfrom the box. It will be noted that these apertures 20 are so locatedthat the inrushing air will lift or move coins from either the bottomwall 22 or the ledge 21, so that the air stream will carry these coinsto the nozzle of the vacuum collecting apparatus.

FIGS. 4 and 5 illustrate the novel vacuum operated lock, which isintended to replace existing locks on meters and has a shape so that itmay form a replacement for such existing locks. In the illustratedembodiment, the door 30, designed for use with the meter head of FIG. 6,is pivoted, as at 31, to a coin chute arranged to be secured within themeter head and having coin directing wings 36 for directing coins intothe slot 16 of top plate 15 of receptacle 10. Near its lower end, door30 is formed with a circular aperture therethrough receiving the vacuumoperated lock, generally indicated at 40.

Lock 40 includes an enlarged outer head 41 having an outwardly extendingperipheral flange 42. A body portion 43 is integral with and projectsinwardly from head 41 and is formed with an annular recess for receivinga C- washer or the like, indicated at 37, for quickly and easilysecuring lock assembly 40 to door 30.

Adjacent its inner end, body 43 is formed with a transversely extendingchamber 45 which has a transversely enlarged outer end or recess 45 anda reduced inner end 47 connected by a very small diameter passage 48 tothe exterior of body 43. Recess 46 has a tight gripping fit with anannular insert 51 forming a guide sleeve for a locking plunger or latchelement having an enlarged inner end 52. A coil spring 53 seated in thereduced portion 47 of passage 45 biases piston 50 outwardly until theenlarged inner end 52 thereof abuts against the collar 46. At this time,the piston 50 extends substantially beyond body 43. An air passage 49 isformed longitudinally through body 43 and opens into reduced portion 47of chamber 45 and through the outer face of head 41.

The arrangement operates in the following manner. Receptacle It isplaced within the coin receiving space of a parking meter head, such asthe head 55 of FIG. 6, or substituted for the original receptacletherein, and chute 35 is mounted in position above the receptacle andwith its wings 36 aligned with slot 16. Door 30 is pivoted to the coinchute 35 as at 31. The body portion 43 of lock 40 extends inwardlythrough the tubular extension 25 and the projecting latch 50 engagesbehind the inner end of this extension to hold door 30 locked. The meterhead is now ready for operation. As the coins fall into the meter head,they strike the bafile 23 and are deflected toward the rear of thereceptacle to fall upon bottom wall 22, although some coins may lie onledge 21 when a large number of coins are accumulated in receptacle 10.

To remove coins from the receptacle, the nozzle 55 of a suitable vacuumcollecting assembly including a flexible hose 56 (FIG. 6) is placedagainst head 41 of vacuum operated lock 40, the nozzle having an outerdiameter such that it has a close conforming fit with the innerperiphery of flange 42. When a relatively high vacuum is applied throughthe collecting mechanism, the vacuum is effective, through passage 49,on chamber 45. This vacuum results in inward movement of the piston 50so that the latter will disengage the inner end of extension 25. Door3%) may then be swung open.

The nozzle 55 is then inserted with a tight conforming fit into theextension 25 so as to place the high vacuum on the interior of the coinreceptacle. Due to the plurality of apertures 20, there is considerableagitation of the coins within the receptacle by the air rushing in atrelatively high velocity, whereby the coins are carried to the nozzle 55and thus to the collecting apparatus. When all of the coins from thereceptacle have been collected, nozzle 55 is withdrawn from extension 25and door 30 is closed. To retract locking piston 50 for closure of thedoor, the nozzle 55 may be again applied to the head 41 of vacuumoperated lock 40.

It will be noted that access to the coins is absolutely prevented, andthat no key is required to open the coin receptacle door. This is doneentirely by vacuum. Also, the coins are collected solely by vacuum, andat a very rapid rate. The inward extension 25 and the ledge 21 preventunauthorized extraction of coins from the receptacle 10 by insertingfingers through a front opening of the coin receptacle. Collection ofcoins is fast, efiicient, and theft-proof.

The meter head 60A shown in FIGS. 7 and 8 is one in which a door 30A hasits top edge hinged to the head and has its bottom edge normallycarrying a key operated lock having a plunger engage-able in a hole 26in a latch plate 27 on the bottom surface of a meter head compartment28. In the case of this particular form of parking meter head, inaccordance with the invention, a coin receiver 10A is secured within thecompartment 28, and the vacuum operated lock '40 of the invention issubstituted for the key opera-ted lock removed from door 30A. Theplunger or piston 50 of the lock 49 cooperates with the hole 26 in plate27 to lock door 30A, and the lock 40 is vacuum operated to the openposition in the same manner as described with reference to FIGS. 1through 6.

Coin receiver or receptacle 10A is provided with a circular opening 25A,which may be, if desired, in the form of an inward tubular extension ornipple such as shown in FIG. 3 of the drawing. The opening or nipple 25Ais of a size such that the nozzle 55 attached to vacuum hose 56 willhave an air-tight fit therein. In this case, as in the case of thearrangement shown in FIGS. 1 through 6, the coins are removed fromreceptacle 10A by means of a vacuum, the removal of the coins and theirpassage to the nozzle 55 being facilitated by the air turbulence createdwithin the receptacle 10A through inflow of air through the apertures Aadjacent the bottom of the receptacle.

As an alternative to the arrangement just described with reference toFIGS. 7 and 8, the key operated lock may be retained at the lower edgeof door 30A and the vacuum operated lock 40 may be mounted through thedoor at a position wherein the mounting hole for the lock will beaxially aligned with the aperture A. In this arrangement, in order tocollect coins from the receptacle 10A, the vacuum nozzle 55 is appliedto the face of lock 40 to retract the latch 50, engaged within theaperture or tubular extension 25A, and the entire lock 40 is thenremoved from the door A. The vacuum nozzle 55 is then inserted throughthe opening in the door 30A and into the opening or tubular extension25A to remove coins from receptacle 10A with door 30A remaining in the 6locked closed position by virtue of the key operated lock. As thisarrangement will be clear to those skilled in the art from the abovedescription and a reference to FIGS. 7 and 8, it has not been deemednecessary to illustrate the same in the drawing.

FIGS. 9 through 1 1 illustrate a form of parking meter head 6013 inwhich access to a compartment is obtained by removal of door 303 afterunlocking a key-operated lock for the door. In accordance with theinvention, a coin receptacle 10B is secured within the compartment, andthis coin receptacle has an opening 25B, which may be extended inwardlyin the manner shown in FIG. 3, as well as relatively small apertures2013 for providing turbulence of air within the receptacle. The nozzle55 of the vacuum collecting apparatus is arranged to have an air-tightfit within the circular opening 25B.

With respect to the vacuum operated lock 4i], either one of twoarrangements may be used with the type of parking meter head shown inFIGS. 9 through 11. The vacuum operated lock 40 may be mounted throughthe door 303, at a position substantially aligned with the aperture 253and so that the lock 43 will have locking cooperation with this aperturethrough the medium of pin or plunger 50, and lock 46 may be fixed todoor 303, as by a C-washer 37 (FIG. 5). By application of a vacuum tolock 40, pin 56 may be withdrawn and the entire door and lock assemblyremoved. The vacuum nozzle 55 is then applied through the hole 25B towithdrawn coins from receptacle 10B, with air turbulence being providedby the apertures 20B.

Alternatively, door 30B may be permanently welded or riveted to themeter head 60B, and lock 45 may be removably mounted through the door30B, normally hav ing latching cooperation with the aperture 25B. Afterthe vacuum is applied to the lock 40 to withdraw the locking pin 50, theentire lock 40 may be removed from the fixed door 3GB, and vacuum nozzle55 may be inserted through the opening in door 30B and through theopening 2513 to withdraw the coins from receptacle 10B.

FIGS. 12 through 14 show another form of parking meter head 60C in whicha door 30C is hinged at its lower edge to the meter head and has a keyoperated look at its upper edge having a keeper cooperable with a strap33 riveted or otherwise secured to the meter head. Meter head 60C isprovided with a compartment 34. In accordance with the invention, a coinreceptacle 10C is provided in the form of a pipe or tubular memberinserted in the stanchion 38 supporting the meter head 60C. Tubular coinreceptacle NC is so positioned that its upper end extends into thecompartment 34, and this upper end is closed by suitable means indicatedat 57. The wall of coin receiver or receptacle 10C is formed with acircular aperture 25C in which the vacuum nozzle 55 isarranged to have asubstantially air-tight fit for withdrawing coins from receiver 10C. Tocreate the necessary air turbulence for moving the coins toward thevacuum nozzle, coin receiver NC is provided with a closed lower endcomprising a wall 58, and wall 58 is formed with a plurality ofrelatively small apertures 200. Air rushing through the openings 20Ccreates turbulence effecting movement of the coins up to the opening 25Cand thus out through the nozzle 55. The key operated lock is replaced bythe vacuum operated lock 40, whose piston or plunger 50 cooperates withthe strap 33 in the same manner as does the key operated lock.

While a specific embodiment of the invention has been shown anddescribed in detail to illustrate the application of the principles ofthe invention, it will be understood that the invention may be embodiedotherwise without departing from such principles.

What is claimed is:

1. A coin-collecting assembly, for coin-controlled apparatus,comprising, in combination, a coin receptacle arranged to be secured ina compartment of the apparatus and formed with a coin withdrawal openingarranged to receive, in substantially fluid-tight relation, the nozzleof a vacuum-powered coin collector apparatus, for vacuum extraction ofcoins from said receptacle; and a vacuumoperated lock controlling accessto said coin withdrawal opening and including a body, a latch normallybiased to extend from said body for locking cooperation with keepermeans of said compartment, and a passage extending through said bodyfrom the inner end of said latch to the outer surface of said lock, theouter surface of said lock being arranged to conformingly receive saidnozzle, in fluid-tight relation, to establish a vacuum withdrawing thelatch from its extended locking position.

2. A coin-collecting assembly as claimed in claim 1 including a doorcontrolling means to said compartment; said vacuum-operated lock beingmounted on said door.

3. A coin-collecting assembly as claimed in claim 2 in which saidvacuum-operated lock controls opening of said door.

4. A coin-collecting assembly as claimed in claim 2 including a keyoperated lock controlling opening of said door; said vacuum-operatedlock being mounted in an opening in said door aligned with said coinwithdrawal opening, and being removable from the opening in the door,when said latch is vacuum operated to the retracted position, forinsertion of said nozzle through the opening in the door and into saidcoin withdrawal opening.

5. A coin-collecting assembly as claimed in claim 2 in which saidvacuum-operated lock is secured to said door and is removable when saidlatch is vacuum operated to the retracted position.

6. A coin-collecting assembly as claimed in claim 2 in which said doorisfixed in position; said vacuum-operated lock being removably insertedthrough an opening in the door aligned with said coin withdrawingopening and held against removal from the door when said latch isextended; said vacuum-operated lock being removable from said door, whensaid latch is vacuum operated to the retracted position, to provide forsaid nozzle being inserted through the opening in said door and intosaid coin withdrawal opening.

7. A coin-collecting assembly as claimed in claim 2 in which saidcompartment is formed in a head mounted on an upwardly extending tubularstanchion communicating, at its upper end, with said compartment; saidcoin receptacle comprising a relatively elongated tubular bodytelescoped in said stanchion and having its upper end extending intosaid compartment; means closing the upper end of said tubular body; saidcoin withdrawal opening being formed through the lateral wall of saidtubular body just below the upper end thereof and facing said door; saidtubular body having a substantially closed lower end formed withaperture means for entry of air thereinto to create turbulence movingthe coins toward said coin withdrawal opening upon application of avacuum by means of said nozzle; said vacuum-operated lock being securedto said door and said latch cooperating with keeper means fixed relativeto said head.

8. In a coin controlled device having a coin receiving space defined, atleast in part, by outer wall means having an opening therethroughaffording access to said space: a lock body extending conforminglythrough said opening and having an outer end surface designed toconformingly receive the end of a nozzle connected to a source ofrelatively high vacuum; a latch projectable laterally from the surfaceof said body inwardly of said wall means; means biasing said latch to aprojected position for cooperation with a keeper surface of said spaceto prevent access to said space; and a passage extending through saidbody from the inner end of said latch and opening through the area ofsaid outer end surface and enclosed by the nozzle end when the latter isconformingly engaged with said outer end surface; whereby, when suchnozzle is applied to such outer end surface of such body, a vacuum isestablished within said passage withdrawing the latch from engagementwith such keeper.

9. In a coin controlled device as claimed in claim 8, said coinreceiving space being further defined, in part, by other well means,including a bottom wall, formed with apertures therethrough for entry ofair at a relatively high velocity into said space when a relatively highvacuum is applied to the latter to agitate coins therein for transferinto the nozzle of a coin collecting apparatus.

10. In a coin controlled device, as claimed in claim 8, a tubularextension extending inwardly into said space in alignment with saidopening; said keeper surface comprising the inner end of said tubularextension.

11. In a coin controlled device as claimed in claim 8, said body beingformed with an air by-pass connecting said passage to atmosphere,whereby mere oral suction will be inefi'ective to withdraw said latch.

12. In a coin controlled device, as claimed in claim 8, a box-shapedcoin receptacle disposed in said coin receiving space and having a topwall formed with a coin slot, a bottom wall, a pair of opposite sidewalls, a front wall and a rear wall; said front wall having a coinremoving opening therein above said bottom wall arranged to receive, insubstantially fluid-tight relation, the nozzle of a vacuum-powered coincollector apparatus; said outer wall means comprising a door hinged tosaid device to close said coin receiving space, and said lock beingiounted through an opening in said door constituting saidfirst-mentioned opening, with said latch being cooperable with saidreceptacle.

13. In a coin controlled device, as claimed in claim 12, said front wallbeing formed with an inwardly extending tubular extension bounding thecoin removing opening therein.

14. In a coin controlled device, as claimed in claim 13, a downwardlysloping baffie extending from the inner surface of said front wall,above said tubular extension, to the inner end of said tubularextension, to deflect coins past said tubular extension.

15. In a coin controlled device as claimed in claim 13, said front wallbeing formed with an inwardly extending offset portion substantiallyparallel to said bottom wall and spaced shortly thereabove, said offsetportion comprising a shelf substantially coextensive inwardly with saidtubular extension.

16. In a coin controlled device, as claimed in claim 15, said shelfbeing formed with a plurality of apertures for entry of air at highvelocity into said receptacle when a relatively high vacuum is appliedto the latter through said coin removing opening.

References Cited in the file of this patent UNITED STATES PATENTS1,154,439 Scholfield Sept. 21, 1915 1,460,609 Scola July 3, 19232,465,146 Broussard Mar. 22, 1949 2,570,920 Clough Oct. 9, 19512,869,777 Share Jan. 20, 1959

